... Generator type voltage regulator is a compatible replacement for Newage Stamford MX321 and Onan 305-0823.MX321 is a ... temperature-55 to + 80 degreeOur Products as follow:Stamford Automatic Voltage Regulator :MX341,MX321,SX440,SX460,AS440,AS480 ... ,ESD5520,EFC3044196,3062322Cummins Actuator:3408324,3408326,ADC225Other parts:MPU,Stamford rectifier :RSK2001,RSK5001 ,SSYEC432,stop solenoid,current transfer ...